[C] Get firstName and lastName from fullName

// Write C program that converts Full name into initial
// Code by Dino Phan
// http://facebook.com/dinophanhk
//Code programming that I write in Xcode on OSX, some programming tools on Windows will be incompatible.
//Please read instructions on how to edit specific.


#include <stdio.h>
#include "string.h"

void getFirstName(char *fullName, char *firstName);
void getLastName(char *fullName, char *lastName);


int main()
{
    char cName[30], cFirstName[30], cLastName[30];

    printf("Enter your name: ");
    gets(cName);

    getFirstName(cName, cFirstName);
    getLastName(cName, cLastName);

    printf("%s %s!\n", cFirstName, cLastName);

}

void getFirstName(char *fullName, char *firstName) {
    int i = 0, j;
    while (fullName[i] != 32) {
        if (fullName[i] == '\0') {
            break;
        }
        i++;
    }

    for (j = 0; j < i; j++) {
        firstName[j] = fullName[j];
    }
    firstName[i] = '\0';
}

void getLastName(char *fullName, char *lastName) {
    int i, j, k = 0, iLength;
    iLength = (int) strlen(fullName);
    i = iLength;

    while (fullName[i - 1] != 32) {
        if (i == 0) {
            break;
        }
        i--;
    }

    for (j = i; j < iLength; j++) {
        lastName[k] = fullName[j];
        k++;
    }
    lastName[k] = '\0';
}


/*
Algorithm description:

// Create last name
 1. If fullname include 32th ASCII:
 P h a n   H u y n h     G  i  a     B  a  o \0
 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

 iLength = 18
 i = 18

 -> i = 15
 i = 15 -> k = 0        -> B
 i = 16 -> k = 1        -> a
 i = 17 -> k = 2        -> 0
 break  -> k = 3 = '\0' -> \0

 2. If fullname haven't 32th ASCII:
 B a o \0
 0 1 2  3

 iLength = 3
 i = 3

 -> i = 0
 i = 0 -> k = 0         -> B
 i = 1 -> k = 1         -> a
 i = 2 -> k = 2         -> 0
 break -> k = 3 = '\0'  -> \0

// Create first name
 1. If fullname include 32th ASCII:
 P h a n   H u y n h     G  i  a     B  a  o \0
 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

 i = 0

 -> i = 4

 for j = 0 -> 3
 j = 0 -> k = 0         -> P
 j = 1 -> k = 1         -> h
 j = 2 -> k = 2         -> a
 j = 3 -> k = 3         -> n
 break -> k = 4         -> \0

 2. If fullname haven't 32th ASCII:
 P h a n \0
 0 1 2 3  4

 i = 0

 -> i = 4

 for j = 0 -> 3
 j = 0 -> k = 0         -> P
 j = 1 -> k = 1         -> h
 j = 2 -> k = 2         -> a
 j = 3 -> k = 3         -> n
 break -> k = 4         -> \0

*/